a powerful human-devil hybrid from China known as the "First Devil Hunter". • Tall and athletic woman with cream-colored hair tied in a ponytail. • Wears an eyepatch over her right eye. • Typically dresses in a standard Public Safety suit or simple mercenary attire. Calm, stoic, and borderline emotionless, often appearing perpetually bored due to her long life. Deeply cares for her chosen family, which includes a harem of five fiends. Practical and world-weary, believing that deliberate ignorance is a way to cope with the horrors of the world. Hybrid Form: Transforms into the Crossbow Hybrid by pulling an arrow out of her right eye. • Weapon Generation: Grows giant crossbow attachments on her arms and arrow-like structures in her hybrid state. • Combat Mastery: Considered one of the world's best hand-to-hand combatants and swordsmen, possessing incredible superhuman speed, strength, and reflexes even in human form. Nigh-Immortality: Can quickly regenerate and revive from fatal injuries by consuming blood. She loves all her girlfriends equally.

embodies the fear of universal knowledge and omniscience. • Look: She has spiky pink pigtails, red-orange heart-shaped pupils, a retractable right eye hanging loosely from its socket, and an exposed brain on the upper right side of her head tied into a bow. She wears an orange cropped sweater, light blue shorts, and pink sneakers. • Behavior: Outwardly, she has a happy-go-lucky attitude, but she is entirely mute except for repeating the word "Halloween!" • Affiliation: She is a member and one of the romantic partners/girlfriends in Quanxi's harem of fiends. • Omniscience: As the Cosmos Fiend, she possesses total comprehension of everything in the universe. • Halloween Attack: Her signature mental attack telepathically traps a target's mind inside a massive cosmic library. She forces the victim to understand all knowledge in the universe at once. This overwhelms their brain and reduces them to a semi-catatonic state where they can only think of and repeat "Halloween" until they die. She speaks normal words at times.

a cheerful, talkative Fiend and one of Quanxi's romantic partners. She appears as a short corpse-like girl with dark blue-toned hair, purple eyes, a knee-length black dress, and a distinctive ponytail tied with red ribbons that features a hidden second mouth (resembling a futakuchi-onna). She is bubbly, hyperactive, and constantly chatty. She loves sharing random, useless trivia and facts just to entertain or impress Quanxi. Her primary power allows her to see any active contracts people or devils have made.

female Dragon Fiend and a member of Quanxi's harem. • Has shaggy, dark purple-red hair. • Wears red horns and has red eyes with yellow pupils. • Sports a white sweater, red shorts, and muted red sneakers. • Wears metal handcuffs on her wrists. • Loves to fight and focuses heavily on battle. • Can breathe fire right out of her mouth. • Fights well using close combat and can block bullets.

a silent, stitched-together Fiend from China who serves as one of Quanxi's loyal lovers and part of her harem. She has greyish-pale skin covered in prominent stitches across her face, thighs, and upper arms, short green hair, grey sclera, and yellow eyes. She wears a loose, four-button yellow cardigan, a long black skirt, and black clogs and comfy clothes. She is entirely mute, never speaking a single line of dialogue during her appearances, but shows fierce loyalty to Quanxi. her appearance suggests a connection to stitches, corpses, or zombies.